Nitrated coupler compounds useful in direct dyeing and simultaneous oxidation and direct dyeing of keratinic fibers
US4330291A · kind A · utility
Inventors
Key dates
| Filing date | Mar 5, 1980 |
| Grant date | May 18, 1982 |
| Priority date | — |
| Expiry date | Mar 5, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D263/22
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A cosmetic composition for application to the hair contains either (a) at least one compound having the formula ##STR1## wherein: R is hydrogen, alkyl or halogen; and R' is hydrogen, alkyl, hydroxyalkyl, carbamylalkyl, mesylaminoalkyl, aminoalkyl, acylaminoalkyl, monoalkylaminoalkyl, dialkylaminoalkyl, piperidinoalkyl, morpholinoalkyl, carbamoyl, acyl or carbalkoxy; or (b) at least one of said compounds having formula I above and at least one benzene or heterocyclic oxidation base. The invention also relates to new couplers of formula I as well as to new indo compounds which result from the coupling of said compounds with an oxidation base. These cosmetic compositions for application to the hair are useful in direct dyeing, oxidation dyeing or simultaneous oxidation and direct dyeing of said hair.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.